The Russel J. Thomsen, MD, Contraceptive Collection of the Loma Linda University School of Medicine#noDrivingDirections0Images from gallery: The Russel J. Thomsen, MD, Contraceptive Collection of the Loma Linda University School of MedicinerelativeToGround-77.00592338.8897799000000Russian CuT
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Russian version of the Copper T. The tips of the transverse arms have a slight downward-pointing lip. 2mm-wide copper tape wrapped around stem. Slight upward tilt to transverse arms. Two clear nylon (?) cervical threads.

Rilsan with a barium sulphate filament embedded for radiopacity. Available in four sizes ranging from 25mm to 30mm in width. The sizes were color coded by means of the double, colored cervical multifilament, woven thread tail. The device shown here has a green thread tail, and was originally marketed as the 3rd size (28.5mm).

Open ring devicemade from polypropylene without barium sulphate, with nodules on both ends. 0.30mm dia. copper wire wrapped around device covering 200-300mm(squared) surface area. Nylon or polyethylene threads off ends. This was an experimental design studied between 1969 and 1975. The Copper Omega was made in both a nullipaous and multiparous size.

Injection molded polyethylene in the shape of part of a flower - three flexible "flower petals" with the outer two petals having "teeth" on the interior of the loop. Nylon (?) threads attached to the cervical end.

T-shaped device with the ends of the arms turned downward. Copper wire (99.9% pure) wound around stem plus two copper sleeves - one on each arm - for a surface area of 380mm2 of copper. One blue cervical thread, no knot, one end threaded up shaft with the copper wire wound over, securing it. Designed for parous women.

Closed V in the shape of the uterus. Stainless steel wire encased in silicone plastic with 200mm square of copper wire in four sections - both cross arms and both sides. Black nylon (?) thread holds the device closed.

Injection-molded polyethylene with barium sulfate added for radiopacity. 200mm2 of copper wire containing a silver core, wrapped around stem. Stem ends in open loop (cervical end) through which two nylon thread - one white; one blue - are attached. The arms meet the stem in a slight 'V' juncture and continue outward with a slight downward bent ending in bulbed ends.

Molded plasthyd with barium sulfate for radiopacity, impregnated with copper dust. Copper amounts ranged from 37mg to 120mg. Available in four sizes. Two green nylon cervical threads. Original Om-GA patent U.S. No. 3,516,403, was filed 7-5-1968 and granted 6-23-1970.

According to Russel J. Thomsen M.D., some 15 models of the OMGA Copper IUD were manufactured by Sodermec. The surface of the IUD was impregnated with acetate and nitrate salts of copper. The cervical threads (not present here) would have been attached through the eyelet at the base (cervical end) of the device. The device's shape somewhat mimics the shape of the uterus. The device was marketed and used through the 1960s to 1980s.

Polyethylene vertical stem from which two pliable barbed arms project downward. The stem has been wrapped with 250mm2 of copper wire. The device is a hybrid of the Dalkon Shield and the Tatum T with the spurs on the side arms provide a continuous fundal-seeking effect, but to not stretch the uterine cavity. Expulsive uterine contractions result in a flexing of the apex, which increases resistance to expulsion. See: Michel Thiery, "Multiload Devices", Intrauterine Contraception: Advances and Future Prospects, p. 87-94.

Silicone plastic on a flexible wire frame with 200mm2 of copper wire (total) split into 4 segments. Two green nylon (?) threads tying the two ends of the device into a closed loop. Releases copper at a rate of 9.33 mcg per day. this unit appears to exhibit corrosion of the copper wire.

Y-shaped device with nodule at tip of one arm only to cover the tip of the inserter for ease of insertion. Both arms wrapped in copper wire with 250-300mm2 of surface area covered. Nylon or polyethylene thread off cervical end of device.

Y or V-shaped device with the ends of the two arms curved slightly inward. Short vertical shaft. 0.25mm copper wire wound around arms for a surface area of 400mm2. Two gold monofilament cervical threads.

This device is very similar to the Ota Ring of Japan, with the primary difference being this device uses a stainless steel coil around the outer polyethylene ring. Triangular polyethylene center core with three curved spokes radiating out. Unlike other Chinese metal ring IUDs, this one came with nylon cervical threads.

Y-shaped device with stainless steel core and three horizontal cross appendages at cervical end of stem. These could be cut to fit uterus. A hole in the rounded cervical end of the stem for threads (not present). Two triangular wings between the 'V' at the fundal end of device. This device was developed to treat and prevent intrauterine or intracervical adhesions associated with Asherman's Syndrome, and was inserted during dilation and curettage of the uterus.

Injection molded translucent polyethylene with magnetic strip inside one long side. Upper bar is notched with the "arms" angled downward. Rounded cervical end. Two nylon cervical threads (not present here) would be attached at the rounded end. Shield-shaped. Device designed so that it could be compressed within the insertion tube then resume its shape within the uterine cavity and adjusting to such.

3 horizontal appendages - may be cut to fit uterus. Small hole in the cervical end of stem for threads. 2 triangular wings. Developed to treat and prevent intrauterine or intracervical adhesions. 'V' at fundal end with the wings in between the 'v'.

3-dimensional device. Polyethylene with barium sulfate for radio-opaqueness. Sold on a limited scale. FDA pulled approval due to the problems with closed devices. Nylon threads attached to central axis.

Handmade by coiling nylon filament into a circle and knotting it several times around the circumference. Two filament ends left extending out from the circle to serve as cervical threads. Blue nylon filament.

Experiemental design. Modified heart or shield with magnet in the central spoke. Cervical threads (absent here) would be attached through the lower eyelet at the cervical end of the central spoke. This device was tested on 12 women at the Johns Hopkins Hospital Contraceptive Clinic. See: Israel, Robert and Hugh J. Davis. "Effect of Intrauterine Contraceptive Devices on the Endometrium". JAMA, Feb 28, 1966, v195, no9, p.144-148.

Deseret Pharmaceutical of Salt Lake City, Utah, copied the gynekoil IUD, with slight variation in stem placement, but the company was sued by Ortho Pharmaceutical, who owned the rights to the Gynekoil. The design of this Saf-T-Coil Model 44 has a coil of approximately 35mm in diameter that flows into a stem. The stem on the present model has been cut off after the second bulb.

One of four K. S. Wing designs. Stainless steel wire core covered with molded natural rubber. No cervical threads. Bulbed ends. The arms are notched. "N S-2" is stamped into the rubber on the stem. We assigned the #2 based on the order of images in the Population Report in which it was described.

One of four basic K. S. Wing designs. Stainless steel wire core covered with molded natural rubber. No cervical threads. In this design, the arms have been extended from the bulbed ends of design #2. "Wing" is stamped into the rubber on the stem.

Variation of the Yusei Ring with the upper crossbar and two inner spokes are formed as one unit, polyethylene encasing a metal wire. The lower arc does not contain the metal wire. The polyethylene coil is attached in two pieces to the lower arc. No cervical threads.

Silkworm gut strands coiled into a closed loop. Present copy has what appears to be a stainless steel (or silver?) wire looped around one strand and wrapped around itself. Unsure as to the purpose of this wire.